code: def explore_string(item: Dict[str, Any]) -> List[ParameterBaseTypes]:
      """Return possible parameter values for the `string` parameter type.
  
      Args:
          item: dictionary containing details on the parameter such as default, min and max values.
      """
  
      if "enum" in item:
          return item["enum"]
      return [item["default"]]
  
file_path: ludwig/ludwig/config_sampling/parameter_sampling.py
imports: import random
  from typing import Any, Dict, List, Union
  from ludwig.schema.metadata.parameter_metadata import ExpectedImpact
label_desc: Use image node_id 5 for calling a global function with example usage: explore_string(item) and returns: list, item